Water Pollution and Irrigation Issues

The video discusses the use of water in agriculture and industry, highlighting the benefits and challenges of irrigation, such as increased agricultural yield and issues like soil salinity and groundwater depletion. It also covers industrial water use, emphasizing the need for sustainable practices and water neutrality goals. The video addresses water pollution from industry, citing historical events like the Cuyahoga River fires, and the resulting Clean Water Act. It concludes by summarizing the impacts of water use on shortages and pollution.

What percentage of harvested lands worldwide use irrigation?

• 75%

• 50%

• 25%

• 10%

Which country has approximately 66 million acres of irrigated land?

• India

• China

• Brazil

• United States

What is one ecological consequence of building dams for irrigation?

• Disruption of aquatic life

• Decreased evaporation

• Increased fish population

• Improved water quality

What is a major problem caused by irrigation in Pakistan?

• Increased crop yield

• Decreased soil salinity

• Poisoned acres due to high salinity

• Improved groundwater levels

Which aquifer is experiencing a significant drop in water levels due to irrigation?

• Great Artesian Basin

• Ogallala Aquifer

• Nubian Sandstone Aquifer

• Guarani Aquifer

Which industry is the largest user of water?

• Pharmaceutical industry

• Pulp and paper industry

• Textile industry

• Automobile industry

How much water does Coca-Cola claim to use for every liter of beverage produced?

• 1 liter

• 0.5 liters

• 2.43 liters

• 1.43 liters

What was a significant outcome of the Cuyahoga River fires?

• Increased industrial production

• The Clean Water Act of 1972

• Improved river navigation

• Decreased water pollution

What is a point source of water pollution?

• Groundwater seepage

• Evaporation

• Water from a pipe

• Rainwater runoff

What is a potential consequence of water usage in agriculture and industry?

• Improved soil quality

• Unlimited freshwater supply

• Increased wildlife population

• Water shortages and pollution